Cancer that forms in the cells of the breasts is known as breast cancer. There are several types of breast cancer such as angiosarcoma, ductal carcinoma in situ, inflammatory breast cancer, invasive lobular carcinoma and male breast cancer. The signs and symptoms of breast cancer include a lump, a newly inverted nipple, a change in size, shape, or appearance of the breast, and changes to the skin over the breast or the areola. Breast exams, mammograms, breast ultrasound, breast biopsy, and breast MRI are used to diagnose it. The treatment of breast cancer includes palliative care, immunotherapy, hormone therapy, chemotherapy, radiation therapy and targeted drug therapy. It can also be treated through surgeries such as lumpectomy, mastectomy, sentinel node biopsy, axillary lymph node dissection, etc. Regular exercise, maintaining a healthy weight, limiting alcohol, and choosing a healthy diet can reduce the risk of breast cancer. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in the prevention and treatment of breast cancer. It aims to shed light on some of the unexplored aspects of this disease. The book will serve as a reference to a broad spectrum of readers.